Barricade-alarm for doors



(N0 Model.)

G. D. WINTBRS.v BARRIOADE ALARM FOR DOUBS.

.N0-605,366. Patented June 7,1898.

lA 1,) "1 im l Sify.

a citizen of the United States, residing at lower end of the bar B and ahole A2 for the lliurrnn' STATES GFORGE D. l/VINTERS,

i muonc O F RENO, NEVADA.

-BAIRRICADE-ALARM Fo R- oo o Rs.V

srncrrrcnrronforming part of' Letters Patent No. 605,366, `Oia/tea .nine7, 1898, Appunti@ ned January 21, 139s. f serai No. 567,456. No man.)

.To a/ZZ whom it may concern.-

Be it known that I, GEORGE D. WINTERS,

Reno, in the county of. Vashoeand State of` Nevada, have inventedcertain new and useful Improvements in Barricade-Alarms for Doors, ofwhich the following is a full, clear, and exact description. x

My invention is an improvement in burglar-alarms, beingin the nature ofa barri cade-alarm for doors, whereby an alarm will be sounded by apartial opening of the door in case any one should attempt to enter whenthe alarm is set.

The invention consists in certain novel constructions and combinationsof parts, as will be hereinafter described, and pointed out in theclaims. In the drawings, Figure l is a perspective view showin gthelower portion of a door with myimprovements applied. Fig. 2 is a detailelevatiompartly in section,showin g the alarm mechanism, the bell beingremoved. Fig. 3 is a side view of the alarm mechanism. Fig. 4 is a topplan view thereof. Fig. 5 is a de tail section o`n about line 5 5, Fig.2. Fig. 6 is a detail View showing the lower portion of the strut-barand the seat-plate therefor, and Fig. 7 is a detail view of theseat-plate.

In carrying ont my invention I prefer to provide the seat-plate A forthe lower end of the strut-bar B,such seat-plate being recessed in thefloor and having a socket A for the bolt B' at the lower end of saidbar. While this seat-plate is preferred, it will be understood it may beomitted when desired and the bar be pointed or otherwise adapted at itslower end to engage the iioor. At its upper end the strut-bar B has `asliding connection with the door,being preferablyprovided with a longitudinally-elongated slot B2, through which is passed the bolt C,bywhich the strutbar is held to the door. This bolt C is supported bylugs or brackets C' on a frameplate C2, which also supports the bell Dand the mechanism for sounding the same, which mechanism includes atrip-bar E, arranged for operation by the upper end of the strutbar andadapted to release the detent which `with its lowerend as a pivot.

holds the bell from sounding. The alarm mechanism, as shown in Fig..1,.is supported on the door. This bar Eextends above the upper end ofthe strut-bar, and the latter as it moves `upward by` the openingV ofthe door will press the bar E up and causeithe same to release thedetent and permit the'bell to sound, as will more fully appearhereinafter. In `this operation itwill be seen that the door. is openedit will push the upper end of the strut-bar back and the latter'will,\rise, owing to its movement in the arcfof a circle As it so risesit will lift the bar E 'andA release Vthe alarm mechanism, which Iwillnow describe.

The bell is4 sounded by a spring F,`con

`nected with a ratchet pF', which is rengaged by a detent-pawl G,pivoted at G andarranged to be engaged by a projection E on the bar E insuch manner as to be released by the upward movement of the strut-bar,as before described. The operation of this construction will be wellunderstood from Fig. 2. As the strut-bar is lifted it willthus releasethe detent, and the bell will sound; 'but if the door shouldbe slightlyopened andthen quickly closed the bell would sound momentarily exceptfor the detent H, which I have provided for holding the bar E elevatedwhen it is pushedfup by the strut-bar. As lshown in Fig. 5, this detentis in the form of ahook pivoted at its upper end and arrangedat itslower end to engage' underA the bar E when such bar is lifted by thestrut-bar.' This detent thus holds the bar E up and causes the bell tosound until it is run down or until the detent I-I isreleased, so if oneshould attempt to enter the room and should quickly close the dooraftery the bell commences to sound the bell will not stop ringing, butwill con.`

tinue ringinguntil run down.

When the strut-bar is not in use, it may be swung upward on the bolt C`as a pivot and be held by engaging its bolt B with an eye or staple I onthe door.

Having thus described my invention,what I claim, and desire to secure byLetters Patent, is

l. A barricade-alarm for doors comprising a strut-bar having at itsupper end a sliding connection with the door and an alarm mechroo anismsupported on the door and 'including p ing the trip-bar substantially assei forth.

3. In an apparatus substantially as described the combination of thedoor, a strutbar having at its upper end a sliding connection with saiddoor and the alarm supported independently of the strut-bar and having atrip portion arranged to be released by said.

strut-bar substantially as described.

4. A barrieade-alarm for doors comprising a frame-plate supporting thealarm mechanism and provided with brackets, a strut-bar having alongitudinally-elongated slot and fitted between said brackets, the pinor bolt passed through said slot whereby the strutbar has a slidingconnection with the frameplate, and the alarm mechanism having a tripportion arranged for operation by the strutbar substantially asdescribed.

5. A barricade-alarm for doors comprising the bell, the spring forsounding the bell, the detent-pawl for restraining said spring, thetrip-bar arranged at one end to release said detent-pawl, the strut-barfor operating said trip-bar to release the detent-pawl, and a detent forholding said trip-bar when adjusted by the strut-bar substantially asset forth.

6. In an alarm mechanism the combination of the strut-bar having at itsupper end a sliding connection with the door, alarm mechanism arrangedto be released by such upper en'd of the strut-bar, and a seat-plate toreceive the lower end of the strut-bar substantially as set forth.

7. A barricade-alarm for doors, comprising the door, the strut-bar, thealarm mechanism arranged for operation by the strut-bar, a seat-plate inthe iioor, an eye or staple on the door and a bolt at the swinging endof the strut-bar arranged to engage the seat-plate when thestrut-barislowered and the eye or staple when the strut-bar is raisedsubstantially as set forth.

GEORGE D. VINTERS.

Witnesses:

SoLoN C. KEMON, P. B. TURPIN.

